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Revision 21 by tony, Thu Feb 26 10:33:34 2015 UTC vs.
Revision 105 by tony, Thu Jan 18 14:37:32 2018 UTC

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1 < IBX Change Log  version                                      (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1 > IBX Change Log  version                                  (2.1-1) Sun, 07 Jan 2018 15:15:13 +0000
2 >
3 > 1. IBExtract: Identity columns - add addition check for null column for generator name.
4 >
5 > 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 >   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 >   information). Values returned as a result of executing an Insert or Update statement
8 >   replace existing values in the current row for each corresponding column.
9 >
10 > 3. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
11 >   When InsertSQL is generated, the Identity columns are not included in the list of values to
12 >   be inserted. A RETURNING clause is added to the insert statement to return the value of
13 >   each Identity column after the insert is executed.
14 >
15 > 4. TIBGenerator: small performance improvement by not preparing query each time
16 >   a new number is generated.
17 >
18 > 5. TIBSQL: Free resources when transaction changed.
19 >
20 > 6. Property editor will now sync table name to a System Table when "Include System
21 >   Tables" is selected and the query is for a System Table.
22 >
23 > 7. Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
24 >   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
25 >   Insert..Returning clause
26 >
27 > IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
28 >
29 > 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
30 >   changes.
31 >
32 > 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
33 >   Bug could result in truncated multi-byte character set values.
34 >
35 > 3. Changes consequential on moving fbintf character set utility functions from
36 >   IFirebirdAPI to IAttachment.
37 >
38 > 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
39 >
40 > 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
41 >   results in autocomplete ignoring prefix text.
42 >
43 > 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
44 >   entering a new name into the text box.
45 >
46 > 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
47 >   Firebird rather than recomputing it.
48 >
49 > 8. Property Editor positioning tidy up: All IBX Property editors should now be
50 >   screen centre. Previously some were "poDesigned" which may be inappropriate
51 >   for multi monitor desktops.
52 >
53 > 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
54 >
55 > 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
56 >    a transaction and always reset the object.
57 >
58 > 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
59 >
60 > 13. TIBXScript: Allow for override of database filename in Create Database statements.
61 >
62 > 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
63 >    to a gbak format archive.
64 >
65 > 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
66 >
67 > 16. IBLocaldb: Drop database if error creating an empty database.
68 >
69 > 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
70 >    unless selected node not in current dataset.
71 >
72 > 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
73 >    to TIBCustomService, and IBlocalDB code tidy up.
74 >
75 > 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
76 >    behaviour due to uninitialised variable.
77 >
78 > 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
79 >    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
80 >
81 > 21. IBSQL: When Database changed ensure that all resources are freed.
82 >
83 > 22. IBCustomDataset: When database changed ensure that queries an unprepared.
84 >
85 > 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
86 >    * Line Wrap on SQL Token boundaries (on user command)
87 >    * auto-complete table names in drop down list of table names
88 >    * Double click on tablename or field name adds to SQL text
89 >
90 > 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
91 >
92 > 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
93 >    TVariantArray. Seems to avoid memory corruption in Windows (probably a
94 >    workaround for a problem in fpc 3.0.4 win64).
95 >
96 > 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
97 >
98 > 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
99 >
100 > IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
101 >
102 > 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
103 >   include remote system name.
104 >
105 > 2. TIBExtract: No longer include comment header and COMMIT statement for empty
106 >   tables when data included in output.
107 >
108 > 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
109 >   and timing information to be written to stdout. This may be used to locate
110 >   performance bottlenecks.
111 >
112 > 4. SQLParser: only call "OnChanging" event handler when value is different.
113 >
114 > 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
115 >
116 > 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
117 >   that BindFields is called when the query is next activated. Avoids FieldName
118 >   not found error.
119 >
120 > 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
121 >   purpose and allows the programmer to define any action they want for Update, Insert
122 >   or Delete. This may be complex SQL (similar to a Trigger), application specific
123 >   filtering of updates, or use of statements such as Grant or Revoke instead of
124 >   normal DML. See User Manual for more information.
125 >
126 > IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
127 >
128 > 1. TIBEvents: Fix uninitialised variable that could result in lost events.
129 >
130 > 2. TIBExtract: Added support for FB3 "USAGE" privilege.
131 >
132 > 3. TIBExtract: data formatted as Charset set "octets" is now output using
133 >   hexadecimal notation.
134 >
135 > 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
136 >   using a simple XML format.
137 >
138 > 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
139 >   grants to these objects.
140 >
141 > 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
142 >   dependency problems restoring complex databases.
143 >
144 > 7. TIBXScript: This component has been restructured to allow for the processing of
145 >   embedded XML in INSERT statements and to support interactive sources in addition
146 >   to non-interactive data sources such as files.
147 >
148 > 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
149 >
150 > 9. TIBXScript: ISQL compatiable Set statements are now supported:
151 >   SET SQL DIALECT
152 >   SET TERM
153 >   SET AUTODDL
154 >   SET BAIL
155 >   SET ECHO
156 >   SET COUNT
157 >   SET STATS
158 >   SET NAMES <character set>
159 >
160 > 10. IBVersion unit added to hold current IBX Version Number information.
161 >
162 > 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
163 >    and domain definitions.
164 >
165 > 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
166 >    fully supported.
167 >
168 > 13. TIBExtract: when a database dump includes data, the generator values are now also set.
169 >
170 > 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
171 >
172 > IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
173 >
174 > See also doc/IBX4LazarusGuide.pdf for important information on
175 > upgrading to IBX2.
176 >
177 > 1. Size property of TIBStringField is now the width in characters of the field
178 >   and not the byte length. This applies only to multi-byte character sets such
179 >   as UTF8. The original approach aligned with TStringField. However, the TStringField
180 >   code is not recognised as a bug and hence this change to align the behaviour.
181 >   The TStringField change is expected in fpc 3.2.0.
182 >
183 > 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
184 >   true (default) then Size property value saved in the lfm is ignored. Size is
185 >   always set from the dynamic information read from the database. It is unclear
186 >   why anyone would want to override this and set Size to false.
187 >
188 > 3. ibxscript: should now handle correctly a Case..End statement within a procedure
189 >   block.
190 >
191 > 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
192 >   exist when an attempt is made to connect to it (run time only) then an attempt
193 >   is made to create the database.
194 >
195 > 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
196 >   has been successfully created as a result of a call to CreateDatabase or when
197 >   creating a database after it was found not to exist.
198 >
199 > 6.  DBControlGrid: a race condition could result in the wrong row image being
200 >    written to the cache. This has been avoided by a trip round the message
201 >    loop before rendering the row image.
202 >
203 > 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
204 >    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
205 >    known to risk corrupt rendering of row images when the control is first
206 >    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
207 >    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
208 >
209 > 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
210 >    a TDateEdit control located on an editor panel.
211 >
212 > 9.  TIBExtract: brought up-to-date plus many bug fixes.
213 >
214 > 10. DBControlGrid: Removed memory leak when updating rows.
215 >
216 > 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
217 >
218 > IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
219 >
220 > 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
221 >   when target codepage is CP_NONE. This is a workaround for
222 >   http://bugs.freepascal.org/view.php?id=30622.
223 >
224 > 2. DBLog option removed from TIBStatisticalService - not supported by server
225 >   since Firebird 1.5.
226 >
227 > 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
228 >   similar.
229 >
230 > 4. IBCodePage: updated mapping between codepages and character id.
231 >
232 > 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
233 >   Firebird. Character sets with a char width of two are not UTF16.
234 >
235 > 6. Strings received from the database are now always transliterated into UTF8
236 >   regardless of the database character set or connection character set. This
237 >   is for compatibility with the LCL.
238 >
239 > IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
240 >
241 > 1. IBBlob: Defer reading of blob until read method called. This avoids having to
242 >   read in an entire blob just to get the size of the blob. General performance
243 >   improvement when opening datasets containing blobs.
244 >
245 > 2. Clearing a  Blob now sets the corresponding field's modified flag.
246 >
247 > 3. IBLookupCombo: When not performing auto-complete, original query sort order
248 >   is now used.
249 >
250 > 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
251 >   determined.
252 >
253 > 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
254 >
255 > 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
256 >   lazarus 1.6.0
257 >
258 > 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
259 >   compilation error.
260 >
261 > IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
262 >
263 > 1. No character set specified for connection: when a text blob is retrieved, the
264 >  character set is determined by looking up the native character set using then
265 >  Firebird API. Otherwise a text mode blob is assumed to have the same character
266 >  set as the connection.
267 >
268 > 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
269 >   for Login Dialog returing a change to the database path.
270 >
271 > 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
272 >   to be changed from that given in the TIBDatabase/TIBServer component and for the
273 >   entered value to be saved on a project specific basis (design time only).
274 >
275 > 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
276 >   column fieldname. If they are the same then it is acts as a look up for the KeyValue
277 >   Otherwise, it sets the column text to the selected ListField Value.
278 >
279 > 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
280 >   column width.
281 >
282 > 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
283 >   and a case insensitive search is requested.
284 >
285 > 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
286 >   or column ListSource.
287 >
288 > 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
289 >   unprepare) when closing and the text has not changed.
290 >
291 > 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
292 >   Less likely to cause a cursor re-use error on Windows.
293 >
294 > 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
295 >   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
296 >
297 > 11. TIBTreeView: Guard against nil destination on record changed
298 >
299 > 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
300 >    string type with the code page set to reflect the returned field encoding after
301 >    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
302 >    earlier versions.
303 >
304 > 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
305 >    will now result in transliteration to the code page specified for the Firebird driver
306 >    if the assigned string has a different code page. FPC 3.0.0 onwards only.
307 >
308 > 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
309 >    is ignored and the lc_ctype value, when the database is opened, is set to align with
310 >    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
311 >    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
312 >    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
313 >    the GETACP is used to determine the Windows code page.
314 >
315 > 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
316 >    name used as the lc_ctype when the database was opened. Only valid while the
317 >    Database is connected.
318 >
319 > 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
320 >    id that corresponds to the DefaultCharSetName.
321 >
322 > IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
323 >
324 > 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
325 >   path is given and database attach fails due to access permission issues on the
326 >   temp directory or security database, then the attach is retried with "localhost:"
327 >   prefixing the databasename. This should avoid problems when the database has to
328 >   be accessed by a local (e.g. classic) server and libfbembed is used.
329 >
330 > 2. Windows: revised search order for Firebird DLL:
331 >     i.   The Firebird Embedded Server in the application Directory.
332 >     ii.  If the FIREBIRD environment variable is set then the directory this
333 >          points to is searched for the FB Client DLL and then then underlying
334 >          "bin" directory.
335 >     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
336 >          is used to locate the Firebird installation directory and the underlying
337 >          "bin" directory is searched for the FB Client DLL.
338 >     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
339 >          are searched for the FB Client DLL.
340 >     v.   The PATH Environment variable is used to search for the FB Client DLL.
341 >     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
342 >
343 > 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
344 >   See doc/readme.scriptengine and example applications.
345 >
346 > 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
347 >   simplify the use of the embedded firebird server on both Linux and Windows platforms.
348 >   See dpc/readme.localdatabase and example applications.
349 >
350 > 5. IBDynamicGrid: Reordering on column header click should now also work for
351 >   dynamic columns.
352 >
353 > 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
354 >   between incrementing/decrementing the lock count and signalling the event.
355 >
356 > IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
357 >
358 > 1.3.2 was never formally released and only made available as beta copies.
359 >
360 > 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
361 >
362 > 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
363 >
364 > 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
365 >
366 > 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
367 >   i.e. when it is a calculated field
368 >
369 > 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
370 >   This problem was due to a race condition between recalculating row heights and
371 >   determining which row was selected by the mouse click. The row height calculation
372 >   is now deferred by an extra trip round the message loop allowing the row to
373 >   be always calculated on the current grid layout rather than risking it being
374 >   calculated on the grid layout after the expanded row has been shrunk.
375 >
376 > 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
377 >   Windows.
378 >
379 > 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
380 >   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
381 >   to be determined at runtime. See doc/readme.charactersets.html.
382 >
383 > 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
384 >   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
385 >
386 > 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
387 >   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
388 >   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
389 >
390 >   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
391 >   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
392 >   implies no truncation.
393 >
394 > 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
395 >
396 > 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
397 >   (avoids "Not in Edit Mode" error).
398 >
399 > 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
400 >
401 > 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
402 >    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
403 >
404 > 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
405 >
406 > 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
407 >
408 > 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
409 >
410 > 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
411 >
412 > IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
413 >
414 > 1.   OnCloseUp Event Handler added to TDBLookupProperties
415 >
416 > 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
417 >     problem with row size when exception is called.
418 >
419 > 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
420 >
421 > 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
422 >     in a TCustomComboBox and ignores return key if in a TCustomMemo
423 >
424 > 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
425 >     keyed in i.e. when autocomplete not performed
426 >
427 > 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
428 >     console mode applications with all LCL required functions (builtin dialogs and
429 >     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
430 >     not included in your project, IBX should compile and link with a console mode program.
431 >     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
432 >     console mode application or the IDE will automatically assume that your
433 >     application is GUI based. Instead, you should include the ibexpressconsolemode package.
434 >
435 >     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
436 >     to use the built in dialogs and cursor management. IBDialogs is
437 >     included by default if "ibexpress" is in your project source's "uses" clause.
438 >     This should be the case for all projects created through the IDE. This is why
439 >     you do not want to add the ibexpress package to console mode applications. The
440 >     ibexpressconsolemode package has been created to allow console mode programs
441 >     to avoid adding LCL dependencies when using IBX, while still having the
442 >     unit search paths set up correctly.
443 >
444 >     Existing users should check to ensure that the "ibexpress" unit is included in
445 >     each project's source file (*.lpr).
446 >
447 >     You may find that in order for the IDE to recognise that ibexpressconsolemode
448 >     exists, you have to first open the package in the IDE and then close it. This
449 >     adds it to the most recently accessed packages list. To make it permanently
450 >     available, add the package name to lazarus' staticpackages.inc file.
451 >
452 >         Thanks to Julio Jiménez for suggesting support of console mode.
453 >
454 > 7.   SQL Parser can now accept quoted strings that include new lines
455 >
456 > 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
457 >     of text on start of edit. This is particularly useful when tabbing to a
458 >     column and then inserting text.
459 >
460 > 9.   New Examples provided for IB Services and ISQLMonitor.
461 >
462 > 10. Fix error when writing to blob streams that recorded only the last buffer
463 >    write in the blob stream. In most cases, this did not cause a problem as the
464 >    IB Blob Stream is written in a single write. However, with the TDBImage, write
465 >    of a graphic type prefix was lost which caused a problem when the image could
466 >        not be automatically recognised.
467 >
468 > 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
469 >    already open" errors due to random numbers used for the cursor name being identical.
470 >
471 > 12. IBTable: corrected error that could result in an "Index out of bounds" error
472 >    when opening the table and the Primary Key is the last or only column in the
473 >    table. Thanks to Rick Hoover for the fix.
474 >
475 > 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
476 >    of "UTF-8", and update list of available database character sets. Existing
477 >    users should check the current lc_ctype setting in their applications.
478 >
479 > IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
480 >
481 > 1.  Firebird Services: avoid List Index error when opening a service with an
482 >    empty Params property.
483 >
484 > 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
485 >    Link now set up in Loaded method - avoids occasional failure to apply
486 >    SQL markup on initial open.
487 >
488 > 3.  "Employees" example performance improvements when scrolling.
489 >
490 > 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
491 >    TFrame. Force recaching of selected frame to avoid GTK race (results in a
492 >    random image cached).
493 >
494 > 5.  DBControlGrid: Should now react to changes in panel height at run time.
495 >
496 > 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
497 >    even when further rows exist.
498 >
499 > 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
500 >    always be derived from panel height and setting this property can cause confusion.
501 >    Note for existing projects: to avoid a missing property error at run time,
502 >    each form using the DBControlGrid must be opened, updated and saved in the IDE
503 >    in order to remove the property value from the lfm.
504 >
505 >
506 > IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
507 >
508 > 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
509 >    call Prepare before setting parameter values.
510 >
511 > 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
512 >
513 > 3.  Code tidyup and more robust handling of dsql information result vector.
514 >
515 > 4.  Support for centralised handling of transaction status changes. TIBTransaction
516 >    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
517 >    and "AfterExecQuery". The first three are called after the same event is called
518 >    for an IBCustomDataSet descendent using the Transaction. The fourth is called
519 >    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
520 >    enable monitoring of transaction status changes for a given transaction to be
521 >    handled in a single place. For example, when a change to the dataset occurs
522 >    an indicator can be set that shows the user that in order to save changes,
523 >    the transaction should be committed.  Rather than doing this per dataset, this
524 >    can now be done per transaction.
525 >
526 > 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
527 >    the dataset is scrolled. However, any changes to the current row are, by default,
528 >    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
529 >    have a new property "DataSetCloseAction" that adds automatic posting of changes
530 >    on dataset close. If this property is set to dcDiscardChanges (default) then the
531 >    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
532 >    then IBX will attempt to post any unsaved changes before the dataset is closed
533 >    (and after the BeforeClose event handler is called). The exception is when the
534 >    dataset is being closed as a result of a transaction rollback. In this case,
535 >    no action is taken and any unsaved  changes are discarded. This avoids both
536 >    unnecessary overhead and the risk that a validation error may occur in the Post
537 >    raising an exception and thereby preventing a rollback.
538 >
539 > 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
540 >    In earlier versions, the Display Width was set to the maximum byte width rather than the character
541 >    width. Display Widths are now corrected by dividing by the max byte width per character.
542 >    For UTF8 character sets, the byte width is four and hence the Display Width will be
543 >    the byte width divided by 4. The byte width of each character set is determined
544 >    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
545 >    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
546 >
547 > 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
548 >
549 > 8.  IBLookupComboEditBox: List should now always be restored to full list when the
550 >    control loses focus. Default Key press default interval reduced to 200ms.
551 >
552 > 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
553 >    when dataset rows are less than visible rows.
554 >
555 > 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
556 >    does not exist or DataSet is empty. More responsive on dataset open. New event
557 >    OnRestorePosition. Column sort disabled if no header row.
558 >
559 > 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
560 >    while dataset state is dsInsert. Avoids posting errors.
561 >
562 > 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
563 >    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
564 >
565 > 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
566 >
567 > 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
568 >    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
569 >    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
570 >    always "posts" the current record regardless or whether or not it may be more appropriate
571 >    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
572 >    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
573 >    as the first action of the "Post" method and allows the handler to convert the Post
574 >    into a Cancel if that is the appropriate action on moving to a different row. This is
575 >    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
576 >    raised here, but it may still be more appropriate to validate a post and signal
577 >    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
578 >
579 > 15. On Unix derived systems, the Firebird library name can now be given as a colon
580 >    separated list. Each library name on the list is tried in turn, in left to right
581 >    order with the first found being used as the firebird library. By default, on Linux,
582 >    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
583 >    overidden by the FBLIB environment variable or the OnGetLibraryName function.
584 >
585 >    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
586 >    then it will still attempt to access the database via the Firebird Server and will
587 >    require a username and password. If only the pathname is given, then the username
588 >    and password should be omitted and the unix file permissions are used to grant
589 >    access.
590 >
591 > IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
592 >
593 > 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
594 >    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
595 >    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
596 >    corresponds to a row of the linked DataSource. Any data aware control on the
597 >    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
598 >
599 > 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
600 >   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
601 >   takes place during database access. This may be useful when there are performance issues with
602 >   the change of cursor. Setting the property to false suppresses the change of cursor.
603 >
604 > 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
605 >   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
606 >   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
607 >   making all changes permanent immediately rather than when the transaction is explicitly
608 >   committed.
609 >
610 > 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
611 >   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
612 >
613 > IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
614 >
615 > Development version only.
616 >
617 > IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
618  
619   1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
620     This is typically used during an "OnBeforeOpen" event handler to manipulate the
# Line 16 | Line 632 | IBX Change Log  version
632     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
633     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
634     to revise the available list and restrict it to items that are prefixed by the
635 <   typed text (either case sensitive or case insenstive). Autoinsert allows a
635 >   typed text (either case sensitive or case insensitive). Autoinsert allows a
636     newly typed entry to be added to the list dataset and included in the available
637     list items.
638  
# Line 58 | Line 674 | IBX Change Log  version
674   8. Three new examples illustrate the use of the new IB Controls
675  
676  
677 < IBX Change Log  version                      (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
677 > IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
678  
679   1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
680     setting performance. See "readme.field+param.names in the doc folder.(Thanks to

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